diff options
Diffstat (limited to 'fs/fat/inode.c')
| -rw-r--r-- | fs/fat/inode.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 53f3cf62b7c..5f522a55b59 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -433,11 +433,8 @@ EXPORT_SYMBOL_GPL(fat_build_inode); static void fat_delete_inode(struct inode *inode) { truncate_inode_pages(&inode->i_data, 0); - - if (!is_bad_inode(inode)) { - inode->i_size = 0; - fat_truncate(inode); - } + inode->i_size = 0; + fat_truncate(inode); clear_inode(inode); } @@ -445,8 +442,6 @@ static void fat_clear_inode(struct inode *inode) { struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb); - if (is_bad_inode(inode)) - return; lock_kernel(); spin_lock(&sbi->inode_hash_lock); fat_cache_inval_inode(inode); @@ -542,7 +537,7 @@ static int fat_statfs(struct dentry *dentry, struct kstatfs *buf) struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb); /* If the count of free cluster is still unknown, counts it here. */ - if (sbi->free_clusters == -1) { + if (sbi->free_clusters == -1 || !sbi->free_clus_valid) { int err = fat_count_free_clusters(dentry->d_sb); if (err) return err; @@ -790,6 +785,8 @@ static int fat_show_options(struct seq_file *m, struct vfsmount *mnt) seq_printf(m, ",gid=%u", opts->fs_gid); seq_printf(m, ",fmask=%04o", opts->fs_fmask); seq_printf(m, ",dmask=%04o", opts->fs_dmask); + if (opts->allow_utime) + seq_printf(m, ",allow_utime=%04o", opts->allow_utime); if (sbi->nls_disk) seq_printf(m, ",codepage=%s", sbi->nls_disk->charset); if (isvfat) { @@ -845,9 +842,9 @@ static int fat_show_options(struct seq_file *m, struct vfsmount *mnt) enum { Opt_check_n, Opt_check_r, Opt_check_s, Opt_uid, Opt_gid, - Opt_umask, Opt_dmask, Opt_fmask, Opt_codepage, Opt_usefree, Opt_nocase, - Opt_quiet, Opt_showexec, Opt_debug, Opt_immutable, - Opt_dots, Opt_nodots, + Opt_umask, Opt_dmask, Opt_fmask, Opt_allow_utime, Opt_codepage, + Opt_usefree, Opt_nocase, Opt_quiet, Opt_showexec, Opt_debug, + Opt_immutable, Opt_dots, Opt_nodots, Opt_charset, Opt_shortname_lower, Opt_shortname_win95, Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes, Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes, @@ -866,6 +863,7 @@ static match_table_t fat_tokens = { {Opt_umask, "umask=%o"}, {Opt_dmask, "dmask=%o"}, {Opt_fmask, "fmask=%o"}, + {Opt_allow_utime, "allow_utime=%o"}, {Opt_codepage, "codepage=%u"}, {Opt_usefree, "usefree"}, {Opt_nocase, "nocase"}, @@ -937,6 +935,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, opts->fs_uid = current->uid; opts->fs_gid = current->gid; opts->fs_fmask = opts->fs_dmask = current->fs->umask; + opts->allow_utime = -1; opts->codepage = fat_default_codepage; opts->iocharset = fat_default_iocharset; if (is_vfat) @@ -1024,6 +1023,11 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, return 0; opts->fs_fmask = option; break; + case Opt_allow_utime: + if (match_octal(&args[0], &option)) + return 0; + opts->allow_utime = option & (S_IWGRP | S_IWOTH); + break; case Opt_codepage: if (match_int(&args[0], &option)) return 0; @@ -1106,6 +1110,9 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, " for FAT filesystems, filesystem will be case sensitive!\n"); } + /* If user doesn't specify allow_utime, it's initialized from dmask. */ + if (opts->allow_utime == (unsigned short)-1) + opts->allow_utime = ~opts->fs_dmask & (S_IWGRP | S_IWOTH); if (opts->unicode_xlate) opts->utf8 = 0; @@ -1208,7 +1215,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, */ media = b->media; - if (!FAT_VALID_MEDIA(media)) { + if (!fat_valid_media(media)) { if (!silent) printk(KERN_ERR "FAT: invalid media value (0x%02x)\n", media); @@ -1219,7 +1226,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, le16_to_cpu(get_unaligned((__le16 *)&b->sector_size)); if (!is_power_of_2(logical_sector_size) || (logical_sector_size < 512) - || (PAGE_CACHE_SIZE < logical_sector_size)) { + || (logical_sector_size > 4096)) { if (!silent) printk(KERN_ERR "FAT: bogus logical sector size %u\n", logical_sector_size); @@ -1267,6 +1274,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, sbi->fat_length = le16_to_cpu(b->fat_length); sbi->root_cluster = 0; sbi->free_clusters = -1; /* Don't know yet */ + sbi->free_clus_valid = 0; sbi->prev_free = FAT_START_ENT; if (!sbi->fat_length && b->fat32_length) { @@ -1302,8 +1310,8 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, sbi->fsinfo_sector); } else { if (sbi->options.usefree) - sbi->free_clusters = - le32_to_cpu(fsinfo->free_clusters); + sbi->free_clus_valid = 1; + sbi->free_clusters = le32_to_cpu(fsinfo->free_clusters); sbi->prev_free = le32_to_cpu(fsinfo->next_cluster); } |